Whole of Life Zero Maintenance 21st Century Construction Products
Why Choose Prokol Products for Your Asset Protection in Roof Waterproofing
Prokol Company History
Prokol Polymers are a polymer & liquid engineering manufacturer based in Holland, Prokol have 40 years of experience in the chemical industry and with dedicated chemical engineers and commercial chemists constantly innovating new cutting edge products. Geographically, the Dutch have existed below water levels for hundreds of thousands of years. Primarily as a nation dealing with rising water levels on a regular basis and with the highest point only being one meter above sea level in Holland, who better to advise on waterproofing.
The Dutch cannot have short term solutions to protection when it comes to waterproofing, their total existence relies on whole of life zero maintenance products and applications. When it comes to structural waterproofing of any kind, key product attributes like seamless, hydrophobic, elongation, chemically resistant and the environment, play key parts in developing a structural waterproofing system that will outlast the structure its applied to. Engineering Polymers to suit design is key to Prokol, so every project is reviewed thoroughly before manufacturer warranties are agreed. Also the whole of life zero maintenance is a key product approach as the Dutch also believe in not repairing failing products with the same product.
Manufactured using Green Chemistry
Product & Design in Perfect Harmony
Prokol believe key performance characteristics in coating materials need be understood by asset owners and specifiers alike, so our technical team will consult & educate on all products, their landscapes, all of which can be independently researched and validated. Prokol technical onsite advisers are not only knowledgeable about their product range, but proficient in understanding other manufacturer products. Construction design, building and chemical coating physics all need to work in unison.
The key thing to remember is Prokol are the manufacturer not a third party reseller, its in our interest as the asset warranty holder to ensure the right product is specified and not sold.
Prokol Pure Polyurea Seamless Hydrophobic Roofing Coatings Explained
Prokol Polymers Pure Polyurea range of coating systems are fully hydrophobic, they are impact resistant, seamless and have their own termination details. They are also chemically resistant and engineered with high elongation for vertical and lateral expansion and contraction properties to deal with high extreme levels of freeze thaw cycle. In fact the the operational temperatures of an applied Prokol membrane is plus 200 degrees C and minus 50 degrees. The membrane is 100% solids with 1500% elongation for thermal movement and fully fire rated to EN 13501 - 5 Over Foam or Bitumen Based Substrates. Pure Polyurea is a chemical 20 second cure system that is fully moisture tolerant, these coating can be applied with up to 7% moisture in the substrate and will still cure at minus temperatures in 20 seconds.
Pure Polyurea & Polyurethane Liquid Coatings - Similar in Looks Drastically Different Products In Performance
Polyurethane liquids commonly seen in the roofing landscape and specified are not hydrophobic and not fit for purpose in a wet European countries. They are classed as Hydrophilic and actually degrade when in contact with water (hydrolysis degradation) We at Prokol should know as we manufacture these types of coatings along with hybrids and modified polymers, but there placement geographically is where rainfall or contact with water is minimal. These products would not meet the required application criteria required in Europe and will give the asset water protection product short a short life span or expiry date inline with weather conditions.
Polyurethane liquids look similar to Pure Polyurea but they couldn't be more different when it comes to key waterproofing performance long term. Polyurethane is moisture in tolerant and categorised as hydrophilic meaning it will degrade when in contact with water. These urethane applications will be seen in conjunction with expensive tapered roofing systems which are designed to remove water from the membrane as quick as possible, this is in order to preserve its short life. The only problem here then is dealing with high levels of water discharge into outlets (two metres a second in a heavy down pour) water entering an outlet or down pipe converts to mass, which converts to downward force. This force then meeting a pipe filled with air converts to negative pressure causing stress on internal pipe seals and subsequent failure into the building internally. Its more beneficial to have less of a fall and allow the roof to drain or syphon naturally but for this you need a membrane that can reside under water without degrading, hence hydrophobicity is the key factor in waterproofing systems as your primary line of defence.
Polyurethane's also require catalysts to cure, Pure Polyurea does not. Urethanes require no moisture in the air and at least eleven degrees c and rising to competently cure. These urethane based coating also need to be applied under strict control measures by the applicator, so in certain weather windows & where dew or damp air conditions are concerned they are not fit for purpose. If curing doesn't occur within a given window during colder and wetter months of the season the coating will induce air born moisture causing catalysing problems in the coating and failure.
Also to be noted: most of the urethane coatings in a bid to keep the coating away from damp substrates are designed to work with re-enforcement fleece matting. Polyurethane is a liquid polymer and is designed to elongate, but by restricting its performance with the introduction of " re enforcement matting" contradicts the system and makes it weak by design, plus more layers mean higher cost.
Watch this short video clip explaining the difference between hydrophobic & hydrophilic
A 3 mm Application of Prokol Pure Polyurea will Resist 10 Bar Head of Water or Mains Water Pressure, The Membrane is Also Breathable